James b



Examiner q/ EUEETETUTED F438 Ml Si'NG cum Quite gist gaunt @ffirr.

l JAMES R. WOODWORTH, 0F NUNDA, NEW YORK.

I Letters Patent No. 61,787, dated February 5, 1867. I

msovsn ROOFING.

TO ALL WHOM IT MAY CONCERN:

Be it known that I,'JAME3 R. WoODWORTH, of the town of Nunda, in the county of Livingston, in the State q New York, have invented a new and improved Composition for Roofing Buildings; and I do hereby declare that the following is a full and exact'description thereof.

To enable others to make and use my invention, I will proceed to describe its construction and composition. I first cover the rafters with boards as I would for shingling; I- then cover the boards with laths as I would for a side wall or ceiling; I then cover the laths with waterrlime laster (hydraulic cement) about one-half inch thick or'common brick or plastering mortar, or both mortars mixerh- When dry or nearly so, I spread coril tar (gas tar,) about one-eighthof an inch thick, either raw or boiled, hot or cold, as theweather or'occasion requires. I then throw on dry 'spmd enough to absorb the tar, which when dry forms a hard cement, and one 01" more coats I: finish the roof. I I do not claim any of. the ingredients separately. But what I'claim as my invention, and desire to secure by Letters Patent, is-- i The combination of the ingredients, substantially as and for the purpose set forth.

' JAMES R. WOODWORTH.

Witnesses: M JONATHAN MILLER,

UBIEL B. Mom's. 

